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应用生态学报 ›› 2000, Vol. ›› Issue (1): 136-138.

• 研究论文 • 上一篇    下一篇

生态因子的波动对多刺裸腹溞雄体发生的影响

王金秋1, 张佳忆1, 黄博2   

  1. 1. 复旦大学环境和资源生物学系, 上海200433;
    2. 华东师范大学生物学系, 上海200062
  • 收稿日期:1998-06-29 修回日期:1998-12-16 出版日期:2000-01-25
  • 通讯作者: 王金秋,女,36岁,副教授,博士,主要从事水生生物学和水生生态学研究,已发表论文15篇.E-mail:Jqwang@fudan.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(39770579)

Influence of fluctuating ecological factors on male occurrence of Moina macrocopa

WANG Jinqiu1, ZHANG Jiayi1, HUANG Bo2   

  1. 1. Department of Environmental and Resources Biology, Fudan University, Shanghai, 200433;
    2. Department of Biology, East China Normal University, Shanghai, 200062
  • Received:1998-06-29 Revised:1998-12-16 Online:2000-01-25

摘要: 采用克隆培养法,研究了几种主要生态因子的波动对多刺裸腹溞雄体发生的影响和该溞对上述生态因子波动的敏感程度.结果表明,无论是一次性剧烈刺激,还是持续性渐进刺激,该溞均未能直接产生雄体,即溞的孤雌生殖雌体不能直接转变为混交雌体(两性生殖雌体);在光照、温度、饵料密度、pH值持续性渐进波动时,该溞种群的内禀增长率分别为0.7748、0.7481、0.6539和0.6310d-1ind-1,比对照组降低0.9%、4.0%、16.4%和19.3%,表明该溞对饵料密度和pH值的波动较为敏感,对温度的敏感性次之.

关键词: 多刺裸腹溞, 雄体发生, 混交雌体, 孤雌生殖雌体, 生态因子

Abstract: Studies with clonal culture show that female M.macrocopa did not produce male progeny directly,or,in other words,the parthenogenetic(amictic) female could not transform into microtic(amphoteric) female,when suffered from one-off acute or durative progressive stimulation.Under durative progressive stimulation by illumination,temperature,food density or pH,the intrinsic rates of increase were 0.7748,0.7481,0.6539 and 0.6310 d -1 ind -1,0.9%,4.0%, 16.4 % and 19.3% less than the control,respectively,indicating that the animal was more sensitive to the fluctuation of food density and pH followed by temperature.

Key words: Moina macrocopa, Male occurrence, Amphoteric female, Parthenogenetic female, Ecological factors